package com.qk.management.web.interceptor;

import cn.hutool.core.util.ObjectUtil;
import com.qk.common.util.CurrentUserContextHolders;
import com.qk.common.util.JwtUtils;
import io.jsonwebtoken.Claims;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import lombok.extern.slf4j.Slf4j;
import org.springframework.http.HttpStatus;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;

import java.util.Objects;
import java.util.Optional;
@Slf4j
@Component
public class LoginCheckInterceptor implements HandlerInterceptor {
    private static final String TOKEN_HEADER_NAME = "token";
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        log.info("=========================拦截器处理线程名称是：{}",Thread.currentThread().getName());
        String token = request.getHeader(TOKEN_HEADER_NAME);
        if (Objects.isNull( token)){
            log.info("请求头中没有token");
            response.setStatus(HttpStatus.UNAUTHORIZED.value());
            return false;
        }
        try {
            Claims claims = JwtUtils.parseToken(token);
            log.info("token验证成功");
            String username = claims.get("username", String.class);
            log.info("用户信息是：{}", username);
            Integer id = claims.get("id", Integer.class);
            log.info("用户id是：{}", id);
            CurrentUserContextHolders.set(id);
            return true;
        } catch (Exception e) {
            log.error("token验证失败", e);
            response.setStatus(HttpStatus.UNAUTHORIZED.value());
            return false;
        }
    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        CurrentUserContextHolders.remove();
    }
}
